GATE CE 2022 Set 2 — Question 59
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Environmental Engineering → Municipal Solid Waste → Composting
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Question
At a municipal waste handling facility, metric ton mixture of food waste, yard waste, and paper waste was available. The moisture content of this mixture was found to be . The ideal moisture content for composting this mixture is . The amount of water to be added to this mixture to bring its moisture content to the ideal condition is _______metric ton. (in integer)
Correct answer
24 to 24
Solution
1.Initial State:
- Total mass () = metric tons
- Moisture content () =
- Mass of dry solids () = metric tons
- Initial mass of water () = metric tons
- Desired moisture content () =
- Let be the mass of water to be added.
- Final total mass () =
- Final mass of water () =
Therefore, metric tons of water must be added.
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